Louvered ventilator



Jan. 31, 1928. 1,657,625

J. r. HOAL LOUVERED VENTILATOR Filed Oct. 4. 1927 agyz.

gmmtoo Jun -s Z'HoaL arrangement of baffle such that the slat may be economically mani 25 eluding Patented Jan. 31, 1928.

JAMES T. HOAL, OI BATON ROUGE, LOUISIANA.

LOUVEBED VENTILATOB.

Application filed October 4, 1927. Serial 1%. aeaaao.

This invention relates to improvements in louvered ventilators, having for an object to provide a ventilator of the t pe indicated wherein a novel Construction louver slat is employed in series arrangement and such relative disposition as Wlll ensure ample ventilation and a positive exclusion of the elements from a room, space or other area whose wall or walls are equipped therewith, the said slat being formed with baflle or impedances upon said marginal and intermediate portions which, with arrangement of a plurality of such slats in overlapping relationshi will serve as a water trapping means, sliunting the water therefrom and consequently preventing its passage into the equipped room or other area.

It is an equally important object of the 1nvention to provide a louver slat wherein the means thereupon is ufactured and will be materially reinforced so as to impart the maximum of durability and stren th to a ventilator construction mt e same.

Other objects part obvious and in part pointed out hereinafter.

In order that the invention and its mode of operation may be readily understood by those skilled in the art to which it appertains, I have in the accompanying illustrative drawin s and in the detailed following description hased thereupon, set out one possible embodiment of my invention.

In these drawings:

Figure 1 is a front elevation of the 1mprovedventilator,

Figure 2 is a vertical or longitudinal section through the same, and

Figure 3 is a vertical transverse section through one of the louver slats.

Having more particular reference to the drawings, in connection with which like characters of reference will designate corresponding parts throughout, the invention may be stated to compre end a substantially rectangularly shaped frame 1 provided wit jamb and sill portions, the outer marginal 0 part of said frame being flanged entirely thereabout as is indicated by the numeral 2 whereby to facilitate the positioning an fixing of said frame in the masonryorother elements constituting a wall construction.

Disposed across or transversely of the frame 1 are a plurality of louver slats desigof the invention will be in nated for'clarity herein by the numerals 3,

4 and 5, said louvers bein arranged within the frame 1 in inclined an relatively spaced overlapping relationship as is shown in the Figure 2, the opposite marginal portions of the louver slats 5 being extended into substantially parallelism whereas the forward portions of the louver slats 3 and 4 are correspondingly arranged while the upper or inner portions thereof are engaged or joined,

by suitable means,to the inner side of the top of the frame 1, as is well shown in the- Figure 2. By this inclined positioning and relative overlapping of the louver slats, it will be understood that upwardly directed or lnclincd passage ways will be provided between each thereof, the lower ends of such passage ways opening onto or adacent the forward side of the ventilator frame whereas the remaining or inner extremities thereof open onto the inner side of such ventilator frame. Because of this, it Wlll be understood that the louvers 3, 4 and 5 will act as baffle means or imp'edanees to the passage of water through the ventilator construction into a room or other area equipped therewith.

The louvers 5 are each constructed of single pieces of sheet metal or other suitable material, such as conditions or preference may dictate, said louvers each havin their opposite marginal portions provide with right angularly formed and inwardly disposed baffles 6 which, as will be noted, are arranged at obtuse angles with respect to the body portion of their respective louver slats; whereas the intermediate portions of each of said louver slats has stamped or otherwise formed therein intermediatel osi tioned and longitudinally extending liafdes 7, there being preferably one of these baflies to each of said louver slats and said baflie being transversely curved upon itself as is shown in the Figures 2 and 3, one side of said baflle 7 joining with the adjacent portion of the louver slat whereas the opposite side of said bafiie joins with the remaining side of the slat, effecting, in this way, anoifsetting of said oppositely disposed portions of the slats so that they. are arranged in different planes as is shown in the Figure 3. Furthermore,

d it will be noted that because of the transverse curving of the ba'files 7 in each of the louver slats 5, the inner extremities of the walls thereof will be disposed in slightly overlapping relationship to the adjacent and joining extremity of the upper side of said lat t us givin a greater area of impedance to the be e that the same will serve to positively prevent" the passage of hail, rain or snow through the passage ways of the ventilator construction.

The louver slat 4 has the upper portion thereof cut away, as is shown in the Figure 2, that a proper connection or joinder of the same may be had with the inner side of the ventilator frame top, as is the major portion of the louver slat 3, thus leaving to the slat 4 its lowermost, right angularly formed bafiie 6 and the intermediate longitudinally disposed battle 7, and to the louver slat 3, its lowermost right angularly formed bafiie 6. In this connection, it is timely to note at this point that each of said louver slats 3, 4 and 5 are arranged, as hereinbefore stated, in inclined relative overlapping relationship so as to provide an effectual impedance to the passage of certain elements through the ways of the ventilator construction into a room or other space equipped with the device.

A slat 8 is preferably arranged in the lower portion of the ventilator frame 1, as is shown in the Figure 2 said slat being outwardly inclined toward the normally inner side of the device.

Various means may be employed for securing the louver slats 3, 4 and 5 and the closure slat 8 in fixed or secure ositioning with respect to the rectangular rame 1, it being practicable that the said elements be soldered to the adjacent or contacting portions of the jamb heads and sillsv of said frame. 7

By reason of the relative positioningand arrangement of the louver slats 3, 4 and 5 in the ventilator frame 1, it will be understood that the lowerniost and outwardly disposed baiiies 6 thereof, in being disposed in planes below or part-iall below those planes in which the intermediately arranged baffles 7 are positioned, will function as effectual means for avoiding or preventing the passage of certain elements thereby and through the adjacent ventilator ways of the construction into a room or other space equipped therewith, whereas the transversely curved and intermediately positioned longitudinal. baflies 7 will-afford an effectual impedance or series of impedances to these elements or to such portions of those elements as pass the lowermost and outwardly disposed baflies 6, trapping the same because of their transverse curvature and shunting them downwardly and from without the ventilator construction. The upper or innermost bafiies' 6 upon the louver slats 5 will serve as afinal check or impedance to such of those elements as may pass the previously discharged baflies 6 and 7, strapping the same before they are discharged or delivered nos-1,020

into a room or space equipped with the construction and by reason of the downwardly inclined positioning of the louver slats, causing such elements to be shunted from the construction.

Because of the particular arrangement of the passage wa s between the louver slats 3, 4 and 5, it wi 1 be furthermore understood and appreciated that the construction will serve as an effectual means to permit effectual means to permit of ample ventilation or air passage into an equipped room or space, such air passage taking the form of air currents which flow through the we s between the various louver slats, without etrimental impedance or bafiiing from the bafiles 6 and 7, aforesaid. t

,While I have hereinbefore disclosed one particular form of ventilator frame, it of course will be readily understood by workers skilled in the art that the shape and size of this frame may be varied in many respects, such as conditions or preference may dictate, furthermore, that the number of louver slats designated by the numeral 5 may be increased or decreased to accord with the particular size of ventilator frame to be equipped therewith, while it may become necessary, because of the peculiar shape and size of a modified form of ventilator frame, to cut away or remove other portions of the louver slats, than those indicated in the present embod1ment of the invention by the numerals 3 and 4. P

I claim:

1. A louver slat having the intermediate portion of the same disposed at substantially right angles to the body thereof and trans- .versely curved upon itselfi said intermediate portion extending longitu inally throughout the length of the slat, and.- inwardly 'di osed cross sectionally right angularly forme baffles upon and extending throughout the longitudinal marginal portions of said slat.

2. A louver slat having a trough-like body portion formed intermediately of the same and disposed longitudinally thereof throughout its length and discharging downwardly, those portions upon the opposite sides of the trough-llke portion being of approximately the same width and in different planes.

3. A louver slat having a. trough-like portion formed longitudinally of the intermediate part thereof and opening downwardly, those portions of said slat upon the opposite sides of the trough-like portion being of approximately the same width and arranged in different planes, and inwardly disposed cross sectionally right angular-1v shaped bafiles upon and extending throughout the longitudinal marginal portions of saidslat.

4. A louver ventilator including a frame, a series of relatively spaced louver slats carried by and disposed across the frame in relatively inclined and overlapping relation, cerposed cross sectionally right angnlarly tain of said. slats having a trough-like downshaped bafiles formedv upon and extending I. wardly discharging intermediate portion longitudinally throughout certain of the. formed therein, those portions of said slats marginal portions of the said slats.

5 upon the opposite sides of the trough-like It witness whereoflhavehereunfo set my portion being of approximately the same hand. width and arranged in difierent planes but in r F I substantial parallelism, and inwardly dis- JAMES T. HOAL. 

